usr/src/cmd/mdb/i86pc/modules/unix/unix_sup.s

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright 2018 Joyent, Inc.
  14  */
  15
  16 /*
  17  * Support routines for the unix kmdb module
  18  */
  19
  20 #if defined(__lint)
  21
  22 #include <sys/types.h>
  23
  24 #else
  25
  26 #include <sys/asm_linkage.h>
  27
  28         .file   "unix_sup.s"
  29
  30         ENTRY(kmdb_unix_getcr0)
  31         movq %cr0, %rax
  32         ret
  33         SET_SIZE(kmdb_unix_getcr0)
  34
  35         ENTRY(kmdb_unix_getcr2)
  36         movq %cr2, %rax
  37         ret
  38         SET_SIZE(kmdb_unix_getcr2)
  39
  40         ENTRY(kmdb_unix_getcr3)
  41         movq %cr3, %rax
  42         ret
  43         SET_SIZE(kmdb_unix_getcr3)
  44
  45         ENTRY(kmdb_unix_getcr4)
  46         movq %cr4, %rax
  47         ret
  48         SET_SIZE(kmdb_unix_getcr4)
  49
  50         ENTRY(kmdb_unix_getgdtr)
  51         sgdt (%rdi)
  52         ret
  53         SET_SIZE(kmdb_unix_getgdtr)
  54
  55 #endif /* !__lint */